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GoogleTest - Google Testing and Mocking Framework
A toolkit with common assertions and mocks that plays nicely with the standard library
- testify
- go
- assertions
- mocking
A simulation data generator
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
The industry standard for API mocking in JavaScript.
- msw
- mock
- mocking-framework
- service-worker
Most popular Mocking framework for unit tests written in Java
- mockito
- java
- mocking-framework
- testing-tools
HTTP server mocking and expectations library for Node.js
Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal is to offer a test double framework with a succinct API capable of clearly defining all possible object operations and interactions using a human readable Domain Specific Language (DSL).
- mockery
- phpunit
- php
- stub
Test spies, stubs and mocks for JavaScript.
- stubs
- javascript
- tdd
- test-driven-development
Test Automation Made Simple
- test-automation
- assertions
- testing-tools
- mock-server
A library that allows you to easily mock out tests based on AWS infrastructure.
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Highly opinionated mocking framework for PHP 5.3+
A tool for mocking HTTP services
- wiremock
- json
- mocking
- stubbing
A mock code autogenerator for Go
Sql mock driver for golang to test database interactions
The most popular and friendly mocking framework for .NET
:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach
- graphql-schema
- schema-language
- graphql
- graphql-api
Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
- oas
- prism
- mocking
- api-testing
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
- mock-server
- proxy
- java-client
- javascript-client
A utility for mocking out the Python Requests library.
- tag-production
PowerMock is a Java framework that allows you to unit test code normally regarded as untestable.